I like sandpaper on reactives. And feel I have to use scotch brite or abralon on particles or risk damage.
I have used 1500 and 2000 grit on particles in the past without adverse effects.
REgards,
Luckylefty
--------------------
Proud owner of a 140 first game average this year! Don't bowl me the second two games though! (two warm up balls in league..thanks proprietors)